Showing people getting killed is routine on TV and in the movies, but you’d better not show a dog getting killed. Certainly, our society has its values inverted from what they should be.
(still can't watch movie)
It’s not so much that our values are inverted as that we are desensitized to human killing because we watch it so regularly. Pet killing is rare enough to trouble people enough that it isn’t often shown—which makes it continue to be rare...